1.Influence of bi-level positive airway pression ventilation via nasal on ET-1 of overlap syndrome
Wei-Dong SONG ; Chao ZENG ; Ping XU ;
Chinese Journal of Primary Medicine and Pharmacy 2005;0(11):-
Objective To explore the effect of nBiPAP on ET-1 of patients with overlap syndrome.Methods Levels of ET-1 in plasma of 25 cases of OS,20 cases of COPD were analysed by radioimmunoassay,and ET-1 in OS was measured before and after treatment.The relationship between ET-1 with SaO_2 during sleep was analyzed. Results (1)The ET-1 levels in plasma of OS group were significantly higher than those of COPD group before treatment(P
3.Mesenchymal stem cells modulate immune responses in a rat renal transplantation model
Chao QIN ; Wei ZHANG ; Zhijian HAN ; Dongliang XU ; Wei ZHANG
Chinese Journal of Organ Transplantation 2011;32(11):675-678
Objective To discuss the effect of mesenchymal stem cells (MSCs) in modulating immune responses in a rat renal transplantation model.Methods An in vivo trial of cytology was performed in one centre from March to December in 2008.Wistar rat donors and Lewis rat recipients in a renal transplantation model were randomly divided into 4 groups:MSCs (low dose,1 × 106 )therapy,MSCs (high dose,1 × 107) therapy,CsA monotherapy,and no therapy.Biochemistry methods were used to detect the levels of creatinine in serum.The survival time,renal grafting function and pathological changes of transplanted renal tissues were observed.Results Animal survival was significantly prolonged by MSCs (high dose) therapy and CsA monotherapy as compared with the no therapy group (both P<0.01).Animal survival in the MSCs (low dose) therapy group was prolonged as compared with no therapy group (P<0.01),but shortened as compared with MSCs (high dose) therapy group (P<0.05) and CsA monotherapy group (P<0.05).The MSCs (high dose) therapy and CsA therapy groups showed no special changes in histology,hut the control group showed acute rejection.Conclusion MSCs down-regulated immune responses,reduced production of some inflammatory mediators,preserved graft function in the initial stage after transplantation,and prolonged animal survival,and these effects were the same as those of CsA therapy with 1 × 107/day.
4.Development and prospectings about laparoscopic radical correction for rectal Cancer
Tao LIU ; Chao ZHANG ; Wei LV ; Jianhua XU
International Journal of Surgery 2010;37(3):182-184
Laparoscopic technology has been used in clinic for many years around the world, but its using in colonrectal operation is in recent years, especially in rectal cancer, is developing just in latest 20 years. This article explored the development,the disputing issues and the prospectings of laparoscopic operation for recatal cancer.
5.Characterization of promoter of human interferon regulatory factor 3
Huaguo XU ; Wei PEN ; Chao LU ; Guoping ZHOU
Chinese Journal of Microbiology and Immunology 2009;29(8):732-736
ays revealed that the-(167-111)bp region Was the minimal promoter of the human IRF3 gene.These results suggested that transcriptional factors such ag E2F might be involved in the transcriptional regulation of IRF3 gene.
6.Pharmaceutical care for a patient with warfarin-induced autoimmune hepatitis
Wei LIU ; Lu LI ; Jie XU ; Chao ZHANG
Journal of Peking University(Health Sciences) 2016;48(1):183-186
SUMMARY Herewereportedapatientwithwarfarin-inducedautoimmunehepatitis(AIH),andex-plored new concerns for the pharmaceutical care of warfarin.A 57-year-old woman was admitted to hospi-tal for repeated anorexia,abdominal pain and abnormal liver function.She received prosthetic heart valve replacement because of rheumatic heart disease,and had started warfarin medication since 2 years before.Her liver function was elevated with highest alanine aminotransferase 861 U/L, aspertate aminotransferase 604 U/L,and total bilirubin 1 06.7 μmol/L.Her anticoagulant therapy was switched to low molecular weight heparin and the liver function returned to normal.The liver function was elevated when she started to take warfarin again.The patient was then on liver protection therapy,and warfarin was stopped again for the liver biopsy for diagnosis reason.Through medication consultation and evalua-tion,pharmacists were invited to work together with the physicians and helped to differentiate the reason for abnormal liver function, and provided therapeutic suggestions. Also the pharmacists gained experiences in the treatment of AIH,and discovered a new and severe adverse drug reaction for warfarin. In treating this case,the pharmacists’active involvement into the treatment and evaluation of the effect on the patient reflected the advantage and importance of the multidisciplinary cooperation for pharmacists and physicians when complex diseases are faced.
7.Establishment of a SNP genetic identification method for frozen embryos and sperm of inbred mice
Wei XU ; Tianzhu CHAO ; Lijun LIU ; Kai LI ; Junhua XIAO
Acta Laboratorium Animalis Scientia Sinica 2016;24(2):169-174
Objective To establish a rapid SNP( single-nucleotide polymorphism) genetic identification method for the frozen samples, such as frozen embryos and sperm of inbred mice.Methods In this study, the frozen embryos and sperm of inbred mice were provided by Shanghai Lab.Animal Research Center.Whole genome amplification and PCR-LDR genotyping system were used to get the rich DNA sample.Forty-five SNP were genotyped by multiple polymerase chain re-action and ligase detection reaction( PCR-LDR) .Results The electrophoresis results showed that the whole genome am-plification technique could highly increase the total DNA of frozen embryos.PCR-LDR typing method was suitable for the mouse genome typing of 45 SNPs.Ten strains of inbred frozen embryos and sperms of C57BL/6, BALB/c, FVB/NJ mice were genotyping identified, and their SNP loci data obtained by PCR-LDR were as the same as those of database.The num-ber of frozen mouse embryos was proportional to the number of SNPs detected, and when the embryo number reached more than 12, the detection rate of SNP was 100%.Conclusions This method can be used to the genetic quality identification, and rapidly identify the inbreed frozen mouse embryos and sperms.
8.Pingyangmycin Treating Infantile Proliferating Capillary Hemangiomas in 30 Children
wei-li, XU ; ai-guo, NIU ; ying-chao, LI
Journal of Applied Clinical Pediatrics 2006;0(17):-
Objective To explore the microcosmic mechanism of pingyangmycin treating infantile proliferating capillary hemangiomas so as to find the optimal method for hemangiomas′ treatment.Methods Sixty samples of infantile proliferating hemangiomas were divided into control group(30 cases,aged from 2 days to 6 months) and experimental group(30 cases,aged from 2 to 6 months).Pingyangmycin was made into emulsion and smeared on the surfaces of the leision in experimental group with 3 times every day as well as only matrix in control group.The specimens were resected on d7,then made into pathological slices and electron microscope slices in order to observe the cells microcosmic structure changes and ultrastructure changes.Furthermore,the apoptotic indexes of two groups were detected by the molecular biology method(TUNEL test).Results The number of apoptotic cells were lower in control group(apoptotic index 18.87?13.67)but higher apparently in experimental group(apoptotic index 29.52?15.33).The difference between two groups was significant(t=2.842 P
9.Isolation and Identification of Promoter Sequence of Interferon Regulatory Factor-3 and Detection of Its Promotor Activity in Human Embryonic Kidney-293 Cells
wei, REN ; hua-gao, XU ; chao, LU ; guo-ping, ZHOU
Journal of Applied Clinical Pediatrics 2006;0(17):-
Objective To construct a luciferase reporter plasmid containing interferon regulatory factor 3(IRF-3)human gene promoter and to evaluate promoter activity in human embryonic kidney(HEK)-293 cells.Methods The 1 000 bp fragment was amplified by PCR with human genomic DNA as a template and was directionally cloned into pGL3-basic multiple cloning sites to construct the luciferase repor-ter plasmid pGL3-pIRF-3.Transfection of HEK-293 cells with the promoter-driven lucife-rase construct was performed to induce lucife-rase gene expression and calculate the relative luciferase activity unit(RLU).Promoter sequence of 1 000 bp upstream of transcription initiation site of IRF-3 was analyzed by using Promoter 2.0 Prediction software.Results DNA sequencing and restriction endonuclease analysis verified the successful construction of the plasmid pGL3-pIRF-3.This IRF-3 promoter exhibited a strong promoter activity with an increase of 42.2-fold of RLU in HEK-293 cells when compared with pGL-3 basic vector.The transfection experiment confirmed that the levels of its activation were significantly higher than that in controls in HEK-293 cells.Function analysis of IRF-3 promoter disclosed seve-ral GATA-1 and specific protein 1(Sp1) sites and E2F in minimal promoter region.Conclusion The plasmid pGL3-pIRF-3 promoter is successfully constructed and has a strong basal promoter activity in HEK-293 cells.
10.Effect of insulin on the synthesis and secretion of adrenomedullin in rat aortas in vitro
Xue-wei XU ; Chao-shu TANG ; Ye YANG ; Xiaoying LI
Chinese Journal of Rehabilitation Theory and Practice 2004;10(6):350-350
ObjectiveTo investigate the effect of glucose and insulin on the synthesis and secretion of adrenomedullin (ADM) by rat aortas in vitro.MethodsThe rat aortas were cut into pieces and divided into several equal groups. All the groups were incubated in K-H buffers including different levels of glucose,insulin and insulin+glucose for 3 hours,the group incubated in K-H buffer without glucose was used as control. To determine ADM in K-H buffers and tissues using RIA method.ResultsADM levels in insulin groups (100.0 μIU/ml,200.0 μIU/ml) and insulin+glucose groups were higher than that in control (P<0.05),the ADM levels in glucose groups and low level insulin group (20.0 μIU/ml) were not significantly difference compared with the control. ConclusionHigh levels of insulin can stimulate the synthesis and secretion of ADM.